This isn't actually a negotiation. [If the self destruct sequence is not especially comforting either since... nuclear incineration? Seriously? That sounds like it would cause a lot more problems than it would solve.]

If you have a better solution than bleach, we can hear it, but if you won't work in a lab that meets our standards you don't get our blood. It's really that simple.

[She is interested in finding out what he can learn and if he actually can solve Kellis-Amberlee, as impossible as it sounds, but she's not interested enough to risk the Mansion. Rick may be confident he can cure it. She's certainly not confident enough to let it spread.]